Question: When executing a system call, how can I return a value back? My program will already return a value back. Example: String blah = system(“some command”); Is this correct?

Question: In my computer science class our teacher wants us to find information about Bool.h, which is supposedly in C++. No one in my class can find anything. Also, we

Question: I’ve always used memset() in C to do char array initialization, but in C++ is it normal/acceptable practice to initialize a char array during declaration using this syntax? char

Question: I’m trying to make two classes point to one another. I know the syntax is weird, but it’s just to illustrate: class x{ y* ptry; }class y{ x* ptrx;

Question: I have two questions. How do I pass an array of objects as an argument? How do I fix an error like “do or while loops are not expanded

Question: I would like to know if it is possible to insert objects of different types in the same STL list. I have an object A and two objects AB

Question: I am a Computer Science student, and I am trying to compile a program where I use multiple files and my own header file for the first time. But

Question: I am looking for a data type in C++ that takes eight bytes. I have tried long, long int, and so forth, but they are all four bytes on

Question: In our project we are using many long macros. How we can debug them (setting breakpoints, etc.)? Is there any solution for that in Visual C++ 6.0? Answer: Unfortunately,

Question: How do I create a template library so that I can export templates and use them in different programs? Answer: I’m not sure I understand what you mean by

Question: When using C++, is it better to use stack or free store memory for data objects of medium to large size? I have multiplatform concerns on the answer. The

Question: I’m trying to initialize a const declared in a class. How do I do this? This example fails: class MyClass {private: const int A;}MyClass::MyClass () { A = 1;}

Question: What is the C++ syntax for defining a function that belongs to a nested class that is contained within a template class? For example: template class A{ protected: //

Question: Is there a built-in or default string class in C++ or do I have to create my own? If so, what file can I look in to see the

Question: I’m new to the Standard Template Library. How do I incorporate a user-defined class into a hash_map? What functions do I need to overload? I get compiler errors when

Question: How can I obtain the address of a constructor for a C++ class object? Answer: A constructor is not an ordinary member function. You cannot take its address. Related

Question: Is it considered acceptable to use default argument initializers both in a definition of a function (e.g., void foo(int x =10) {…}) as well as its declaration? Stroustrup, in

Question: Can I take a string that is held in a table and use it as part of a SELECT statement? I need to do this because I have a

Question: I have two databases, each on a separate machine in a network. I want to generate a report extracting data from table1 in database1 and table2 in database2. How

Question: I have created a database of journal articles and want to offer users the ability to search the Author field for the surnames of authors. Most of the articles

Question: Can the latest version of ADO (ActiveX Data Objects) read and write an XML file as a recordset? Answer: Ah, let me qualify that: ADO 2.1 can currently produce

Question: How can I modify and update XML docs that are stored in the cache using a DCOM model (client side)? Answer: Given that caching is an IIS (Internet Information

Question: How do I truncate the last five characters in a field? (The string length varies from row to row.) Answer: Try something along these lines: select left(myfield, datalength(myfield)-5) Related

Question: How do I force a linefeed character using SQL? I created a report (see below) but when I e-mailed this report from Unix the carriage return was not interpreted

Question: I am trying to code an event that will transfer information from the current form into the display of another form. Information like company name and address, and contact

Question: Does XML work with VBA (Visual Basic for Applications)? I’m looking for a quick and easy way to store variable information that will be static once it has been

Question: I want to convert a signed integer into a 16-bit binary as part of a SELECT statement. For example: select myint, howeveritsdone as Binaryfrom mytablemyint Binary—- —————–137 1111111101110111-100 1111111110011100

Question: I want to add two numeric fields with values like these: Example 1: One field named Amount contains 565.25 and other field named Ticket contains null. select amount +

Question: How can I create a crosstab in SQL Server 7.0? I’m used to Microsoft Access, where I can use columnheading and rowheading. Does this work in SQL? Answer: This

Question: I have two tables and both tables have a one-to-many relationship. I want to add a new single record in the first “transheader” table (key is autonumber) and get